support port which not default to 443

[vipcxj]

IFrameAPITest failed because the wrong port. This pull request make test work on the host with a port other than 443, such as 8080.

[jitsi-jenkins]

Hi, thanks for your contribution!
If you haven't already done so, could you please make sure you sign our CLA (https://jitsi.org/icla for individuals and https://jitsi.org/ccla for corporations)? We would unfortunately be unable to merge your patch unless we have that piece :(.

[vipcxj]

FilmstripOnlyTest#testDisplaysDeviceSelection also failed, too. I dig into it and found APP_ID is undefined. and window.location.search and window.location.params are all empty. but a url with config hash(https://localhost:8080/XXX#interfaceConfig.filmStripOnly=true) works well, FilmstripOnlyTest#testLoadsOnlyTheFilmstrip success and the OnlyTheFilmstrip page shows.

[Neustradamus]

@damencho: Can you look this PR?